Method for repairing bad display of active-matrix organic light-emitting display

A light-emitting display, poor display technology, applied in static indicators, instruments, etc., can solve the problems of high instrument cost and cumbersome processing flow of CCDsensor, and achieve the effect of reducing the cost of calibration equipment, reducing the operation process, and improving the debugging speed.

Active Publication Date: 2012-04-25
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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Problems solved by technology

[0009]Due to the cumbersome processing flow of the above implementation method and the high instrument cost of the CCD sensor, it is necessary to take ...

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  • Method for repairing bad display of active-matrix organic light-emitting display
  • Method for repairing bad display of active-matrix organic light-emitting display
  • Method for repairing bad display of active-matrix organic light-emitting display

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 4 It is a schematic diagram of the processing flow of the multi-Gamma correction system of the present invention; Figure 5 It is the architecture diagram of the multi-gamma correction system of the present invention.

[0023] See Figure 4 and Figure 5 The method for repairing defective display of an active matrix organic light-emitting display provided by the present invention comprises the following steps:

[0024] (a) Add a touch screen and a Mura debug box on the display, and the Mura debug box includes a register burning module and a coordinate processing module with read and write functions; the register burning module can use the current I2C or SPI interface burner, Such as AT45DB321D SPI FLASH, S-24CS16A0I EEPROM, the coordinate processing module can choose the coordinate positioning processing device commonly used at presen...

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Abstract

The invention discloses a method for repairing bad display of an active-matrix organic light-emitting display, comprising the following steps of: (a) adding a touch screen and a Mura debugging box on the display; (b) touching abnormal areas on a display screen and sending the coordinate positions of the abnormal areas to a coordinate processing module in the Mura debugging box; forming all bad pixel areas; (c) burning different Gamma Look Up Tables into a Gamma register of a driving chip in sequence for each bad pixel area by a register burning module, and implementing different Gamma correction voltages to correct the grey-level brightness of the bad pixel areas; and (d) repeating the step (c) till the grey-level brightness of the pixel areas of the whole display is uniform. According to the method provided by the invention, the touch screen is used for dividing all the bad pixel areas, differentiated Gamma voltage correction is implemented for all abnormal areas, the cost of correction equipment is reduced and the debugging speed is improved.

Description

technical field [0001] The invention relates to a gray scale correction method of a display, in particular to a display defect repairing method of an active matrix organic light emitting display. Background technique [0002] Organic light-emitting display devices (OLEDs) are active light-emitting devices. Compared with the current mainstream flat-panel display technology Thin Film Transistor Liquid Crystal Display (TFT-LCD), OLED has the advantages of high contrast, wide viewing angle, low power consumption, and thinner volume. It is expected to become the next-generation flat-panel display technology after LCD. It is one of the most concerned technologies in flat panel display technology. [0003] For LCD products, the Gamma curve that TFT panels need to implement is set. Gamma curve: The sensitivity of the human eye to brightness changes in a relatively dark environment is much higher than that in a bright environment. The feeling of the human brain ( The relationship b...

Claims

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Application Information

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IPC IPC(8): G09G3/00G09G3/32G09G3/3225
Inventor 罗红磊邱勇黄秀颀张小宝
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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